Well, the only beer I've used orange peel in is a Belgian Witbier. It contributes bitter, but its a different type of bitter than hops. For me, the orange peel bitter doesn't stick out - its hard to identify is one way to put it. So, I guess the answer for me is no, because its not really upfront when the beer is young, like hops are.
What are you thinking of brewing with those orange peels?